so they can reach racing speeds. 使其能够高速奔跑

83. so they don't shrivel in the baking sun.
    所以不会在烈日曝晒下干瘪
84. Instead, the sun fuels them...
    相反 太阳为它们提供能量
85. heating their cold blood
    将它们的冷血加热
86. so they can reach racing speeds.
    使其能够高速奔跑
87. But even desert reptiles need to quench their thirst.
    但即便是沙漠中的爬行动物 也需要解渴
88. Water seeping up through the ground.
    水从地下渗出
89. Unfortunately, these water holes are almost as salty as the Dead Sea.
    很不幸 这些水洞几乎和死海一样咸

来自《我们星球上的生命 第一季 第四集 Life on Our Planet S01E04 冷血动物》第 86 行